Cisco MDS-9124 Troubleshooting Guide - Page 472
Problem, Description, eight DPP VIs in the DVT VSAN. The VIs
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SANTap Issues Chapter 23 Troubleshooting SANTap Send documentation comments to [email protected] Table 23-3 Common SANTap Mismatch Problems (continued) Problem Description Hosts, targets, HBAs or switches are not supported by the interoperability matrix. • Review the Cisco SANTap interoperability matrix at http://www.cisco.com/en/US/products/ps598 9/products_device_support_tables_list.html. CVT is in the host VSAN. The CVT is the portal through which the appliance communicates with SANTap, and cannot be in the host VSAN. IVR and SANTap are being used together. IVR and SANTap both perform straddling across VSANs and cannot be used together. VIs in a DVT VSAN (CVT and DVT in the same VSAN). This results in the creation of one CPP VI and eight DPP VIs in the DVT VSAN. The VIs attempt to login to DVT, resulting in non-deterministic behavior. Overprovisioning, including: • Too many ITLs per SSM • Too many hosts per DVT • Too many ITLs per DPP When replication is enabled, AVT LUNs are created, and that can increase the ITL count over the limit. (See "Limitations" section on page 23-2.) If Reservation Support is not enabled on the RPA: • 26 AVT LUNs are created at a time. • The appliance completes recovery of these LUNs and then deletes them before creating more. • This behavior does not significantly increase the ITL count. If Reservation Support is enabled on the RPA: • All AVT and AVT LUNs are permanently created. • In RPA 2.3, only half the appliance posts are zoned with AVTs. This does not increase the ITL count significantly. • In RPA 2.4, all appliance ports are zoned with AVTs. This behavior can increase the ITL count significantly. Same pWWN occurs more than once in the same Misconfiguration can result in two DVTs (or two VSAN. VIs) with the same WWN in the same VSAN. For example, assume that two DVTs are created on different SSMs or on different DPPs. Both of these DVTs have the same back-end VSAN. When a host HBA logs into both DVTs, an attempt is made to create two VIs with the same WWN in the same back-end VSAN. This results in non-deterministic behavior. 23-8 Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x OL-9285-05